[GitHub] Mogball opened a new issue #3689: [Filters] Bugs with Druid filters and filter UI

[GitBox <gi...@apache.org>]

Mogball opened a new issue #3689: [Filters] Bugs with Druid filters and filter UI
URL: https://github.com/apache/incubator-superset/issues/3689
 
 
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   - [x] I have checked the superset logs for python stacktraces and included it here as text if any
   - [x] I have reproduced the issue with at least the latest released version of superset
   - [x] I have checked the issue tracker for the same issue and I haven't found one similar
   
   
   ### Superset version
   0.20.4
   
   There are a bunch of weird bugs with filters for Druid datasources, due to the method `get_filters` in `superset/connectors/druid/models` incorrectly handling edge cases.
   
   - An empty `in` or `not in` filter that <strong>comes after</strong> a populated filter causes `'NoneType' has no attribute 'filter'`
   - Adding a `==` or `!=` filter with the default null value will be properly interpreted as `not null` or `is null` but then adding a value and removing it (with the 'x' or by selecting a null value in the dropdown) will cause `object of type 'NoneType' has no len()`
   - `>=` and `>` do not seem to work while `<=` and `<`  give `'bool' has no attribute 'filter'`
   - All four of the above give the `'bool' has no attribute 'filter'` when they are preceded by a valid filter
   
   UI Bugs,
   
   - Selecting a null value in the dropdown for one of the string type filters and then switching the operator gives `prop 'value' should not be null...`
   - Typing a value then gives `Filter is changing an uncontrolled input of type text to be controlled`
   
   Just can't away from these filters :/
   

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